From 182ec4eee397543101a6db8906ed88727d3f7e53 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 7 Nov 2005 11:16:07 +0000 Subject: [JFFS2] Clean up trailing white spaces Signed-off-by: Thomas Gleixner --- fs/jffs2/wbuf.c | 128 ++++++++++++++++++++++++++++---------------------------- 1 file changed, 64 insertions(+), 64 deletions(-) (limited to 'fs/jffs2/wbuf.c') diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index 44d8a894a41b..242cd53a970c 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -188,7 +188,7 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c) /* Find the first node to be recovered, by skipping over every node which ends before the wbuf starts, or which is obsolete. */ first_raw = &jeb->first_node; - while (*first_raw && + while (*first_raw && (ref_obsolete(*first_raw) || (ref_offset(*first_raw)+ref_totlen(c, jeb, *first_raw)) < c->wbuf_ofs)) { D1(printk(KERN_DEBUG "Skipping node at 0x%08x(%d)-0x%08x which is either before 0x%08x or obsolete\n", @@ -237,7 +237,7 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c) ret = c->mtd->read_ecc(c->mtd, start, c->wbuf_ofs - start, &retlen, buf, NULL, c->oobinfo); else ret = c->mtd->read(c->mtd, start, c->wbuf_ofs - start, &retlen, buf); - + if (ret == -EBADMSG && retlen == c->wbuf_ofs - start) { /* ECC recovered */ ret = 0; @@ -274,15 +274,15 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c) if (end-start >= c->wbuf_pagesize) { /* Need to do another write immediately, but it's possible that this is just because the wbuf itself is completely - full, and there's nothing earlier read back from the - flash. Hence 'buf' isn't necessarily what we're writing + full, and there's nothing earlier read back from the + flash. Hence 'buf' isn't necessarily what we're writing from. */ unsigned char *rewrite_buf = buf?:c->wbuf; uint32_t towrite = (end-start) - ((end-start)%c->wbuf_pagesize); D1(printk(KERN_DEBUG "Write 0x%x bytes at 0x%08x in wbuf recover\n", towrite, ofs)); - + #ifdef BREAKMEHEADER static int breakme; if (breakme++ == 20) { @@ -434,7 +434,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) this happens, if we have a change to a new block, or if fsync forces us to flush the writebuffer. if we have a switch to next page, we will not have - enough remaining space for this. + enough remaining space for this. */ if (pad ) { c->wbuf_len = PAD(c->wbuf_len); @@ -442,7 +442,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) /* Pad with JFFS2_DIRTY_BITMASK initially. this helps out ECC'd NOR with 8 byte page size */ memset(c->wbuf + c->wbuf_len, 0, c->wbuf_pagesize - c->wbuf_len); - + if ( c->wbuf_len + sizeof(struct jffs2_unknown_node) < c->wbuf_pagesize) { struct jffs2_unknown_node *padnode = (void *)(c->wbuf + c->wbuf_len); padnode->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK); @@ -453,7 +453,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) } /* else jffs2_flash_writev has actually filled in the rest of the buffer for us, and will deal with the node refs etc. later. */ - + #ifdef BREAKME static int breakme; if (breakme++ == 20) { @@ -462,9 +462,9 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) c->mtd->write_ecc(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, brokenbuf, NULL, c->oobinfo); ret = -EIO; - } else + } else #endif - + if (jffs2_cleanmarker_oob(c)) ret = c->mtd->write_ecc(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, c->wbuf, NULL, c->oobinfo); else @@ -485,7 +485,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) } spin_lock(&c->erase_completion_lock); - + /* Adjust free size of the block if we padded. */ if (pad) { struct jffs2_eraseblock *jeb; @@ -495,7 +495,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) D1(printk(KERN_DEBUG "jffs2_flush_wbuf() adjusting free_size of %sblock at %08x\n", (jeb==c->nextblock)?"next":"", jeb->offset)); - /* wbuf_pagesize - wbuf_len is the amount of space that's to be + /* wbuf_pagesize - wbuf_len is the amount of space that's to be padded. If there is less free space in the block than that, something screwed up */ if (jeb->free_size < (c->wbuf_pagesize - c->wbuf_len)) { @@ -523,9 +523,9 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) return 0; } -/* Trigger garbage collection to flush the write-buffer. +/* Trigger garbage collection to flush the write-buffer. If ino arg is zero, do it if _any_ real (i.e. not GC) writes are - outstanding. If ino arg non-zero, do it only if a write for the + outstanding. If ino arg non-zero, do it only if a write for the given inode is outstanding. */ int jffs2_flush_wbuf_gc(struct jffs2_sb_info *c, uint32_t ino) { @@ -620,13 +620,13 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig /* If not NAND flash, don't bother */ if (!jffs2_is_writebuffered(c)) return jffs2_flash_direct_writev(c, invecs, count, to, retlen); - + down_write(&c->wbuf_sem); /* If wbuf_ofs is not initialized, set it to target address */ if (c->wbuf_ofs == 0xFFFFFFFF) { c->wbuf_ofs = PAGE_DIV(to); - c->wbuf_len = PAGE_MOD(to); + c->wbuf_len = PAGE_MOD(to); memset(c->wbuf,0xff,c->wbuf_pagesize); } @@ -640,10 +640,10 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig memset(c->wbuf,0xff,c->wbuf_pagesize); } } - - /* Sanity checks on target address. - It's permitted to write at PAD(c->wbuf_len+c->wbuf_ofs), - and it's permitted to write at the beginning of a new + + /* Sanity checks on target address. + It's permitted to write at PAD(c->wbuf_len+c->wbuf_ofs), + and it's permitted to write at the beginning of a new erase block. Anything else, and you die. New block starts at xxx000c (0-b = block header) */ @@ -661,8 +661,8 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig } /* set pointer to new block */ c->wbuf_ofs = PAGE_DIV(to); - c->wbuf_len = PAGE_MOD(to); - } + c->wbuf_len = PAGE_MOD(to); + } if (to != PAD(c->wbuf_ofs + c->wbuf_len)) { /* We're not writing immediately after the writebuffer. Bad. */ @@ -682,21 +682,21 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig invec = 0; outvec = 0; - /* Fill writebuffer first, if already in use */ + /* Fill writebuffer first, if already in use */ if (c->wbuf_len) { uint32_t invec_ofs = 0; - /* adjust alignment offset */ + /* adjust alignment offset */ if (c->wbuf_len != PAGE_MOD(to)) { c->wbuf_len = PAGE_MOD(to); /* take care of alignment to next page */ if (!c->wbuf_len) c->wbuf_len = c->wbuf_pagesize; } - + while(c->wbuf_len < c->wbuf_pagesize) { uint32_t thislen; - + if (invec == count) goto alldone; @@ -704,17 +704,17 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig if (thislen >= invecs[invec].iov_len) thislen = invecs[invec].iov_len; - + invec_ofs = thislen; memcpy(c->wbuf + c->wbuf_len, invecs[invec].iov_base, thislen); c->wbuf_len += thislen; donelen += thislen; /* Get next invec, if actual did not fill the buffer */ - if (c->wbuf_len < c->wbuf_pagesize) + if (c->wbuf_len < c->wbuf_pagesize) invec++; - } - + } + /* write buffer is full, flush buffer */ ret = __jffs2_flush_wbuf(c, NOPAD); if (ret) { @@ -773,10 +773,10 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig /* We did cross a page boundary, so we write some now */ if (jffs2_cleanmarker_oob(c)) - ret = c->mtd->writev_ecc(c->mtd, outvecs, splitvec+1, outvec_to, &wbuf_retlen, NULL, c->oobinfo); + ret = c->mtd->writev_ecc(c->mtd, outvecs, splitvec+1, outvec_to, &wbuf_retlen, NULL, c->oobinfo); else ret = jffs2_flash_direct_writev(c, outvecs, splitvec+1, outvec_to, &wbuf_retlen); - + if (ret < 0 || wbuf_retlen != PAGE_DIV(totlen)) { /* At this point we have no problem, c->wbuf is empty. However refile nextblock to avoid @@ -793,7 +793,7 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig spin_unlock(&c->erase_completion_lock); goto exit; } - + donelen += wbuf_retlen; c->wbuf_ofs = PAGE_DIV(outvec_to) + PAGE_DIV(totlen); @@ -837,7 +837,7 @@ alldone: jffs2_wbuf_dirties_inode(c, ino); ret = 0; - + exit: up_write(&c->wbuf_sem); return ret; @@ -880,18 +880,18 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re if ( (ret == -EBADMSG) && (*retlen == len) ) { printk(KERN_WARNING "mtd->read(0x%zx bytes from 0x%llx) returned ECC error\n", len, ofs); - /* - * We have the raw data without ECC correction in the buffer, maybe + /* + * We have the raw data without ECC correction in the buffer, maybe * we are lucky and all data or parts are correct. We check the node. * If data are corrupted node check will sort it out. * We keep this block, it will fail on write or erase and the we * mark it bad. Or should we do that now? But we should give him a chance. - * Maybe we had a system crash or power loss before the ecc write or + * Maybe we had a system crash or power loss before the ecc write or * a erase was completed. * So we return success. :) */ ret = 0; - } + } /* if no writebuffer available or write buffer empty, return */ if (!c->wbuf_pagesize || !c->wbuf_len) @@ -906,16 +906,16 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re if (owbf > c->wbuf_len) /* is read beyond write buffer ? */ goto exit; lwbf = c->wbuf_len - owbf; /* number of bytes to copy */ - if (lwbf > len) + if (lwbf > len) lwbf = len; - } else { + } else { orbf = (c->wbuf_ofs - ofs); /* offset in read buffer */ if (orbf > len) /* is write beyond write buffer ? */ goto exit; lwbf = len - orbf; /* number of bytes to copy */ - if (lwbf > c->wbuf_len) + if (lwbf > c->wbuf_len) lwbf = c->wbuf_len; - } + } if (lwbf > 0) memcpy(buf+orbf,c->wbuf+owbf,lwbf); @@ -943,7 +943,7 @@ int jffs2_check_oob_empty( struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb printk(KERN_NOTICE "jffs2_check_oob_empty(): allocation of temporary data buffer for oob check failed\n"); return -ENOMEM; } - /* + /* * if mode = 0, we scan for a total empty oob area, else we have * to take care of the cleanmarker in the first page of the block */ @@ -952,41 +952,41 @@ int jffs2_check_oob_empty( struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb D1(printk(KERN_WARNING "jffs2_check_oob_empty(): Read OOB failed %d for block at %08x\n", ret, jeb->offset)); goto out; } - + if (retlen < len) { D1(printk(KERN_WARNING "jffs2_check_oob_empty(): Read OOB return short read " "(%zd bytes not %d) for block at %08x\n", retlen, len, jeb->offset)); ret = -EIO; goto out; } - + /* Special check for first page */ for(i = 0; i < oob_size ; i++) { /* Yeah, we know about the cleanmarker. */ - if (mode && i >= c->fsdata_pos && + if (mode && i >= c->fsdata_pos && i < c->fsdata_pos + c->fsdata_len) continue; if (buf[i] != 0xFF) { D2(printk(KERN_DEBUG "Found %02x at %x in OOB for %08x\n", buf[i], i, jeb->offset)); - ret = 1; + ret = 1; goto out; } } - /* we know, we are aligned :) */ + /* we know, we are aligned :) */ for (page = oob_size; page < len; page += sizeof(long)) { unsigned long dat = *(unsigned long *)(&buf[page]); if(dat != -1) { - ret = 1; + ret = 1; goto out; } } out: - kfree(buf); - + kfree(buf); + return ret; } @@ -1068,7 +1068,7 @@ int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_erasebloc n.totlen = cpu_to_je32(8); ret = jffs2_flash_write_oob(c, jeb->offset + c->fsdata_pos, c->fsdata_len, &retlen, (unsigned char *)&n); - + if (ret) { D1(printk(KERN_WARNING "jffs2_write_nand_cleanmarker(): Write failed for block at %08x: error %d\n", jeb->offset, ret)); return ret; @@ -1080,7 +1080,7 @@ int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_erasebloc return 0; } -/* +/* * On NAND we try to mark this block bad. If the block was erased more * than MAX_ERASE_FAILURES we mark it finaly bad. * Don't care about failures. This block remains on the erase-pending @@ -1101,7 +1101,7 @@ int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock * D1(printk(KERN_WARNING "jffs2_write_nand_badblock(): Marking bad block at %08x\n", bad_offset)); ret = c->mtd->block_markbad(c->mtd, bad_offset); - + if (ret) { D1(printk(KERN_WARNING "jffs2_write_nand_badblock(): Write failed for block at %08x: error %d\n", jeb->offset, ret)); return ret; @@ -1125,7 +1125,7 @@ static int jffs2_nand_set_oobinfo(struct jffs2_sb_info *c) /* Do this only, if we have an oob buffer */ if (!c->mtd->oobsize) return 0; - + /* Cleanmarker is out-of-band, so inline size zero */ c->cleanmarker_size = 0; @@ -1151,7 +1151,7 @@ static int jffs2_nand_set_oobinfo(struct jffs2_sb_info *c) c->fsdata_len = NAND_JFFS2_OOB16_FSDALEN; c->badblock_pos = 15; break; - + default: D1(printk(KERN_DEBUG "JFFS2 on NAND. No autoplacment info found\n")); return -EINVAL; @@ -1168,7 +1168,7 @@ int jffs2_nand_flash_setup(struct jffs2_sb_info *c) init_rwsem(&c->wbuf_sem); c->wbuf_pagesize = c->mtd->oobblock; c->wbuf_ofs = 0xFFFFFFFF; - + c->wbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL); if (!c->wbuf) return -ENOMEM; @@ -1194,13 +1194,13 @@ void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c) int jffs2_dataflash_setup(struct jffs2_sb_info *c) { c->cleanmarker_size = 0; /* No cleanmarkers needed */ - + /* Initialize write buffer */ init_rwsem(&c->wbuf_sem); - - + + c->wbuf_pagesize = c->mtd->erasesize; - + /* Find a suitable c->sector_size * - Not too much sectors * - Sectors have to be at least 4 K + some bytes @@ -1210,11 +1210,11 @@ int jffs2_dataflash_setup(struct jffs2_sb_info *c) { */ c->sector_size = 8 * c->mtd->erasesize; - + while (c->sector_size < 8192) { c->sector_size *= 2; } - + /* It may be necessary to adjust the flash size */ c->flash_size = c->mtd->size; @@ -1222,7 +1222,7 @@ int jffs2_dataflash_setup(struct jffs2_sb_info *c) { c->flash_size = (c->flash_size / c->sector_size) * c->sector_size; printk(KERN_WARNING "JFFS2 flash size adjusted to %dKiB\n", c->flash_size); }; - + c->wbuf_ofs = 0xFFFFFFFF; c->wbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL); if (!c->wbuf) -- cgit v1.2.3